Available Answers

1. 1.

   Write T for True and F for False.

   1. After fertilization, the seed becomes the ovule.
   2. The pollen grains sends out a tiny thread-like tube called a pollen tube.
   3. The male and female gamete fuse together to form the cotyledon.
   4. The seed needs air. water, light, and warmth to germinate.
2. 2.

   List the ways in which the seeds of given plants are dispersed.

   1. Pea seeds _____________________________
   2. Dandelion seeds _____________________________
   3. Coconut fruit _____________________________
   4. Maple seeds _____________________________
   5. Balsam seeds _____________________________
   6. Cocklebur seeds _____________________________
3. 3.

   Fill in the blanks.

   1. Any piece of potato with an ______________ can grow into a new plant.
   2. The ______________ of Hibiscus plant can be used to grow new plant.
   3. The leaves of Bryophyllum form several buds along its ______________ that can grow into a new plant.
   4. Mosses reproduce through ______________.
4. 4.

   Choose the correct option.

   1. The pollen grains are released from
      1. cotyledon
      2. anther
      3. filament
      4. style
   2. Pollen grain germinates and form
      1. style tube
      2. seed coats
      3. pollen tube
      4. cotyledons
   3. Fertilized cell is called the
      1. zygote
      2. ovule
      3. pollen
      4. female gamete
   4. The young plant is known as
      1. seedling
      2. ovule
      3. cotyledon
      4. pollen
   5. Dandelion seed is dispersed through
      1. water
      2. wind
      3. animals
      4. explosion
5. 5.

   Choose the correct option to fill in the blank.

   1. A seed has an outer covering called the ________________ (seed cover/seed coat).
   2. The pollen grain may germinate because of the presence of a ________________ (dry/sticky) substance released by the stigma.
   3. The zygote develops into a/an ________________ (embryo/cotyledon) after fertilization.
   4. Dandelion seeds have hair-like structure that acts like a ________________ (wing/ parachute).
   5. Dispersal by explosion takes place in ________________ (balsam/maple) fruit.
6. 6.

   Name the following.

   1. The process by which living organism produces more of its own kind.
   2. The process of fusion of male and female gametes is called ________________.